Due to mixed findings on its safety during pregnancy, gabapentin shouldn’t be taken during pregnancy without first discussing it with your doctor. Gabapentin (Neurontin) is an anti-seizure medication that’s also used for certain types of neuropathic pain. There is a pregnancy exposure registry that monitors pregnancy outcomes in women exposed to antiepileptic drugs (AEDs), such as gabapentin, during pregnancy. Encourage women who are taking gabapentin during pregnancy to enroll in the North American Antiepileptic Drug (NAAED) Pregnancy Registry by calling the toll-free number 1-888-233-2334 or We sought to evaluate the association between gabapentin exposure during pregnancy and risk of adverse neonatal and maternal outcomes. Methods and findings: Using the United States Medicaid Analytic eXtract (MAX) dataset, we conducted a population-based study of 1,753,865 Medicaid-eligible pregnancies between January 2000 and December 2013. Pregnancy-related problems, such as preterm delivery (birth before week 37) or low birth weight (weighing less than 5 pounds, 8 ounces [2500 grams] at birth) have been reported in some studies looking at the use of gabapentin during pregnancy. In our study, only 28% of the women continued taking gabapentin throughout pregnancy as two-thirds of the women (66%) discontinued in the first trimester, most following pregnancy confirmation between 6 and 8 weeks’ gestation. Taken together, the current literature suggests that gabapentin use should be considered with caution during pregnancy and during the post-partum period. Well-controlled, prospective research studies are needed to determine the extent of the risks and benefits of prescribed and nonprescribed gabapentin exposure to pregnant people and their Does taking gabapentin increase the chance of birth defects? Every pregnancy starts out with a 3-5% chance of having a birth defect. This is called the background risk. Small, controlled studies on gabapentin have not suggested an increased chance of birth defects. If you're trying to get pregnant or have become pregnant while taking gabapentin, it is recommended to take a high dose of folic acid (5mg a day). You can get this from your doctor or midwife. Ideally you'll take high dose folic acid for 3 months before you start trying to get pregnant and for the first 12 weeks of pregnancy. There was an increased risk of preterm birth among women exposed to gabapentin either late (RR=1.28 [CI 1.08-1.52], p < 0.01) or both early and late in pregnancy (RR=1.22 [1.09-1.36], p < 0.001). While gabapentin (Neurontin) is now used in a wide variety of clinical settings — for epilepsy, pain management, restless leg syndrome, anxiety, and sleep disturbance – there is relatively little information regarding its reproductive safety. Most recently, a prospective study from researchers at the Motherisk program reports on the outcomes of 223 pregnancies exposed to gabapentin With maternal doses up to 2.1 g/day, estimated doses for fully breastfed infants are 0.2 to 1.3 mg/kg/day (equivalent to 1.3 to 3.8% of the maternal weight-adjusted dose). An expert panel has deemed this drug is an acceptable choice for refractory restless leg syndrome during lactation. UK guidelines state that women who take any anti-epileptic medication should be prescribed high dose folic acid (5mg), although it is currently not known whether high dose folic acid supplementation offers any additional benefit or protective effects over standard dose regimes when taking gabapentin preconceptually or during pregnancy. What are the benefits of taking gabapentin in pregnancy? Gabapentin prevents epileptic seizures, which can be dangerous to the woman and also lead to pregnancy complications. Gabapentin can also improve nerve pain which can severely affect quality of life. Despite the widespread use, only sparse information is available on the safety of gabapentin during pregnancy. We sought to evaluate the association between gabapentin exposure during pregnancy and risk of adverse neonatal and maternal outcomes. Selected References: Blotiere PO, et al. 2020. Risk of early neurodevelopmental outcomes associated with prenatal exposure to the antiepileptic drugs most commonly used during pregnancy: a French nationwide population-based cohort study. BMJ Open 10(6). Brannon GE, Rolland PD. Anorgasmia in a patient with bipolar disorder type 1 treated with gabapentin. J Clin Psychopharmacol. 2000;20(3):379 Does taking gabapentin in pregnancy increase the chance of other pregnancy-related problems? Pregnancy-related problems, such as preterm delivery (birth before week 37) or low birth weight (weighing less than 5 pounds, 8 ounces [2500 grams] at birth) have been reported in some studies looking at the use of gabapentin during pregnancy. As a precaution, gabapentin is only prescribed in pregnancy when the benefits (most commonly of controlling seizures in women with epilepsy) outweigh the possible risks. Gabapentin is an anti-seizure drug and some of these can affect folic acid levels. Women taking gabapentin while trying to conceive and during pregnancy should therefore be Overall, 1,753,865 pregnancies met the inclusion criteria. Among these, 4,642 (0.26%) were exposed to gabapentin during T1, 3,745 (0.21%) were exposed to gabapentin early in pregnancy only (during the first 140 days), 556 (0.03%) were exposed late in pregnancy but not early, and 1,275 (0.07%) were exposed in both early and late pregnancy . A follow-up publication by the same authors found no adverse reactions among 3 additional breastfed infants whose mothers were taking gabapentin during pregnancy and lactation. An exclusively breastfed 5-day-old infant whose mother was taking gabapentin 1.2 grams and levetiracetam 2.5 grams daily during pregnancy and lactation appeared healthy
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